Mostly for amusement, but I am hoping the manuscript provides a list of the 100 or so edible species they surveyed. Interesting speculation on bulbs and tubers as food sources for early hominids: http://www.physorg.com/news138466447.html Manuscript cited is not yet in print.... Includes a pragmatic if not scientific way to distinguish underground storage organs: bulbs are most tender, so easiest to chew, then corms, tubers and rhizomes. The latter perhaps requiring roasting before they could be easily eaten. Now I understand a bit more about the selection pressures for the bulb collecting gene. -Phil _________________________________________________________________ Be the filmmaker you always wanted to be—learn how to burn a DVD with Windows®. http://clk.atdmt.com/MRT/go/108588797/direct/01/